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test: add a test to ensure RecvUntilTerminator() limit works

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Vasil Dimov 2021-03-11 15:09:39 +01:00
parent 80a5a8ea2b
commit 7059e6d822
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1 changed files with 31 additions and 0 deletions
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31
src/test/sock_tests.cpp
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@ -4,11 +4,13 @@
#include <compat.h>
#include <test/util/setup_common.h>
#include <threadinterrupt.h>
#include <util/sock.h>
#include <util/system.h>
#include <boost/test/unit_test.hpp>
#include <cassert>
#include <thread>
using namespace std::chrono_literals;
@ -144,6 +146,35 @@ BOOST_AUTO_TEST_CASE(wait)
waiter.join();
}
BOOST_AUTO_TEST_CASE(recv_until_terminator_limit)
{
constexpr auto timeout = 1min; // High enough so that it is never hit.
CThreadInterrupt interrupt;
int s[2];
CreateSocketPair(s);
Sock sock_send(s[0]);
Sock sock_recv(s[1]);
std::thread receiver([&sock_recv, &timeout, &interrupt]() {
constexpr size_t max_data{10};
bool threw_as_expected{false};
// BOOST_CHECK_EXCEPTION() writes to some variables shared with the main thread which
// creates a data race. So mimic it manually.
try {
sock_recv.RecvUntilTerminator('\n', timeout, interrupt, max_data);
} catch (const std::runtime_error& e) {
threw_as_expected = HasReason("too many bytes without a terminator")(e);
}
assert(threw_as_expected);
});
BOOST_REQUIRE_NO_THROW(sock_send.SendComplete("1234567", timeout, interrupt));
BOOST_REQUIRE_NO_THROW(sock_send.SendComplete("89a\n", timeout, interrupt));
receiver.join();
}
#endif /* WIN32 */
BOOST_AUTO_TEST_SUITE_END()